Re: [RFC PATCH 6/6] ARM: OMAP3: Enable Hardware Save and Restorefor USB Host

From: Sergei Shtylyov
Date: Wed Jun 19 2013 - 13:30:09 EST


Hello.

On 06/19/2013 06:05 PM, Roger Quadros wrote:

To ensure hardware context is restored while resuming from
OFF mode we need to enable the Hardware SAR bit for the
USB Host power domain.

Signed-off-by: Roger Quadros <rogerq@xxxxxx>
---
arch/arm/mach-omap2/powerdomains3xxx_data.c | 8 +-------
1 files changed, 1 insertions(+), 7 deletions(-)

diff --git a/arch/arm/mach-omap2/powerdomains3xxx_data.c b/arch/arm/mach-omap2/powerdomains3xxx_data.c
index f0e14e9..9554d2b 100644
--- a/arch/arm/mach-omap2/powerdomains3xxx_data.c
+++ b/arch/arm/mach-omap2/powerdomains3xxx_data.c
@@ -289,13 +289,7 @@ static struct powerdomain usbhost_pwrdm = {
.prcm_offs = OMAP3430ES2_USBHOST_MOD,
.pwrsts = PWRSTS_OFF_RET_ON,
.pwrsts_logic_ret = PWRSTS_RET,
- /*
- * REVISIT: Enabling usb host save and restore mechanism seems to
- * leave the usb host domain permanently in ACTIVE mode after
- * changing the usb host power domain state from OFF to active once.
- * Disabling for now.
- */
- /*.flags = PWRDM_HAS_HDWR_SAR,*/ /* for USBHOST ctrlr only */
+ .flags = PWRDM_HAS_HDWR_SAR, /* for USBHOST ctrlr only */

Looks like you're not indenting = right, in accordance to the other fields...

.banks = 1,
.pwrsts_mem_ret = {
[0] = PWRSTS_RET, /* MEMRETSTATE */


WBR, Sergei

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